Concrete-form stay.



P. F. RAMM am. NELSEN.

CONCRETE FORM STAY. APPLICATION FILED MAR. 21. 1916.

Patented Mar. 12, HMS.

INVENTORS P6711! F. F0777 777 BYHzf??? JVEZfiZ? ATTORNEYS.

PAUL F. RAMIVI AND HENRY NIELSEN, OF OAKLAND, CALIFORNIA.

CONCRETE-FORM STAY.

Specification of Letters Patent.

Patented Mar. 12, 1918.

Application filed March 27, 1916. Serial No. 86,979.

To all whom it may concern:

Be it known that we, PAUL F. RAMM and HENRY NIELSEN, citizens of theUnited States, residing at Oakland, in the county of Alameda and Stateof California, respectively, have invented certain new and usefulImprovements in Concrete-Form Stays, of which the following is aspecification.

This invention relates to improvements in concrete form stays and hasfor its object the construction of a device whereby the two sides of aconcrete form are held in spaced relation against collapsing andbulging.

Another object of our invention is to provide a device which is cheap tomanufacture, which is easily and quickly placed in position, therebypermitting the forms to be erected more quickly than by use of thespacing blocks and wire ties, which are used at the present time.

Another object of our invention is to pro-- vide a device, whichconsists of two parts joined by a universal joint so constructed thatthe stay will resist both tension and compression strains.

With these and other objects in view our invention consists in the novelconstruction, combination and arrangement of parts herein illustratedand more specifically pointed out in the appended claims.

Reference being had to the accompanying drawing forming a part of thisspecification,

Figure 1 is a view in perspective showing a section of a concrete moldand the manner in which our improved stay is used in connectiontherewith.

Fig. 2 is a view in plan of one form of the improved stay.

Fig. 3 is a view in side elevation of the same.

Fig. 4 is a view in elevation with a modification of this form moreparticularly adapted to use in light work.

Fig. 5 is a view in side elevation of the latter form of stay.

Referring to corresponding parts in the several views by the samenumerals of reference, 1 denotes the upright studs, on the inside ofwhich is attached the sheathing 2, this sheathing being spaced apart adistance equal to the thickness of the concrete wall. To maintain thisdistance between the sheathing it is usual to provide a compressionmember between the two portions of the form and to pass wires around thestuds,

and by twisting the same to draw the two sides of the mold against thecompression member. With our inproved stays both the wires andcompression members are eliminated.

These stays consist of two parts 3 and 4E, joined in the center in orderto facilitate handling and driving. In the form shown in Fig. 2, thesection 4 comprises the main portion 6 provided with the bent endportion 7 which is adapted to be driven into the stud. The other end of6 is bent in plane at right angle to the ends 7, and the end of thisbent portion is looped back on itself, as shown at 8. The section 5 isalso provided with an angular bent portion 7 which as in the oppositemember, is provided with the angular face 9, so that when the device isdriven into the stud the tendency is to cause the ends to assume theposition shown by the dotted lines in Fig. 2. This makes the device moredilficult to pull from the stud after once being driven into the same,and especially as to the strains caused by the weight of the concrete.

The other end of 5 is provided with a loop 10, which loop passes aroundthe bent portion 11 of member 4, and is then looped around the stem 12as shown at 13. In this manner a device is provided with a universaljoint, which is very hard to pull apart. The band 8 prevents side 4:from straightening out and the loop 13 prevents the opposite side fromdoing the same when a tension strain takes place between the twomembers.

It will also be apparent from the method of twisting the pieces togetherthat when the members are straightened out there can be no sliding oneon the other. This enables the stays to resist whatever collapsingtendency there may be between the two sides of the form. The universaljoint facilitates the handling and driving of the stays into thestudding.

In the modified form shown in. Figs. l and 5, the one member is providedwith a plain loop, the other member with a hook shaped end adapted topass through this loop. This form is intended for lighter constructionas the hook or loop may be straightened out more easily than the formsshown in Figs. 2 and 3. I

While we have shown the preferred form of our invention it will beunderstood that minor changes may be made within the scope of the claimswithout departing from the spirit thereof.

What we claim as new and wish to cover by Letters Patent is 1. A formstay comprising two members attached to each other by a universal joint,and an angular b.6111 end on each of said members, forming hooks, saidhooks having beveled ends to cause a change of angle of the hooks whenforced into a support. 2. A form stay comprising two members one ofwhich is provided with an eye at one end, theother having a hookengaging said eye and forming a substantially universal joint, the freeends of said members being bent at an angle to their respective membersand substantially parallel to each other, the extremities of said bentends having in, clined faces shaped to cause a change of angle when theyare forced into studding or the like.

3. A form stay comprising two members larly disposed hooks.

4. A form stay comprising two members,

a loop on the end of one member forming an eye, a hook on the end of thesecond member adapted to pass through the said eye, a loop formed on theend of said hook to prevent removal from said eye, bent hook formed .onthe free ends of said members, said last-mentioned hooks having inclinedfaces.

In testimony whereof we aflix our signatures. V I

' PAUL F. RAMM. HENRY N ELSEN copies of this patent may be obtained forfive cents each, by addressing the Commissioner of Patents,

Washington, D. 0.

